Date: Wed, 3 Jul 2013 15:36:17 +0200 From: mxb <mxb@alumni.chalmers.se> To: Daniel Kalchev <daniel@digsys.bg> Cc: freebsd-fs@freebsd.org Subject: Re: Slow resilvering with mirrored ZIL Message-ID: <2EF46A8C-6908-4160-BF99-EC610B3EA771@alumni.chalmers.se> In-Reply-To: <51D42107.1050107@digsys.bg> References: <CABBFC07-68C2-4F43-9AFC-920D8C34282E@unixconn.com> <51D42107.1050107@digsys.bg>
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Well, then my question persists - why I get so significant drop of speed = while resilvering second drive. The only changes to the system are: 1. Second partition for ZIL to create a mirror 2. New disks are 7200rpm. old ones are 5400rpm. On 3 jul 2013, at 15:03, Daniel Kalchev <daniel@digsys.bg> wrote: >=20 > On 03.07.13 15:46, Maxim Bourmistrov wrote: >> Any ideas? >> Am I completely wrong in assuming that ZIL is involved in resilvering = process? >=20 > Yes. :-) >=20 > Under some conditions, such as using dedup resilver can be really = slow. Nothing to do with ZIL though. You can safely remove ZIL while = resilvering.. it is used only during sync writes to the pool at file = system level. >=20 > Daniel > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
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